docs: def random(self, num_bytes):
          """
          Get random bytes from YubiHSM.
  
          The random data is DRBG_CTR seeded on each startup by a hardware TRNG,
          so it should be of very good quality.
  
          @type num_bytes: integer
  
          @return: Bytes with random data
          @rtype: string
  
          @see: L{pyhsm.basic_cmd.YHSM_Cmd_Random}
          """
          return pyhsm.basic_cmd.YHSM_Cmd_Random(self.stick, num_bytes).execute()